After the annihilation of the Sky Brilliance Sect, Lu Yun temporarily had no intention of continuing on, opting to stay and recuperate instead, while continuing his own cultivation and accumulating runes.
Two days later, thunder tribulation descended upon a spiritual peak of the Sky Brilliance Sect. After nearly an hour of tribulation, it officially ended with a burst of a powerful aura.
Ye Xuan was the one who crossed the thunder tribulation and was promoted to the Rune Seed Realm.
At this point, he became the first Rune Seed Realm powerhouse among the Demon Extermination Generals led by Lu Yun.
With his strength and merit, as long as he reported to the Far Suppression Legion's commander Wei Tianlun, he could be promoted to Earth-rank Demon Extermination General.
After being promoted from Black-rank Demon Extermination General to Earth-rank Demon Extermination General, one usually had two choices.